Cash-register.



No. 897,886. PATENTED SEPT. 8, 1908. A. N. nmcssou. CASH REGISTER.

APPLIOATIOK'I'ILED IABH IZ, 1908.

3 SHEETS-*SHEET 1.

- Al 'IIIII II INVENTOR #LBERT A/ EK/CSSON WITNESSES: QMd y ATTORNEYS 1n: upmus PETERS cm, WASHINGTON, a. c.

No. 897,886. I PATENTED SEPT. 8, 1908.

A. N. 'ERIGSSON.

CASH REGISTER. APPLICATION rmm MAR. 12, 1908.

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PATENTED SEPT. S 1908.,

A. N. 'smossou.

CASH REGISTER.

APPLICATION FILED MAR. 12, 1908.

3 SHEETS-SHEET 3.

IIIIIIIIIII IIIIIIII. IIIIIIIIIIIIIIIIIIIIII} I INVENTOR 192.55??? ERIC sso/v gkv vmvsssasszg alai Aumlmfi ATTORNEYS THE NoRms PETERS Cm, WAsMmcnm, n. c,

UNITED STATES PATENT OFFICE.

ALBERT N. ERIOSSON, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF TO HARRY J. PURSE AND KARL R. DAVIES, OF DETROIT, MICHIGAN.

CASH-RE GIS TER.

Specification of Letters Patent.

Patented Sept. 8, 1908.

Application filed March 12, 1908. Serial No. 420,550.

T 0 all whom it may concern:

Be it known that I, ALBERT N. ERICSSON, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Cash- Registers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to cash registers and consists in the matters hereinafter set forth, and more particularly pointed out in the ap pended claims.

In the drawings, Figure 1 is a view in vertical section through a register embodying features of the invention. Fig. 2 is a view in detail, partially broken away, of a face plate and lever. Fig. 3 is a view in detail of the back of the dial plate, with the computing mechanism and back plate. Fig. 4 is a view in longitudinal section, in detail, of an operating lever. Fig. 5 is a view in detail of a register key and its wheel. Fig. 6 is a view of a modified form of dial plate and adding wheel. Fig. 7 is a view in detail of the back plate with the dial plate and computing mechanism removed, showing return mechanism for the adding wheel. Fig. 8 is a view in section through the modified form of dial plate and adding wheel.

Referring to the drawings, 1 indicates a suitable outer casing having a sliding or swinging cash till 2 in its base, locked when closed by a detent 3 against the action of a spring member 4, which is adaptedto throw the drawer or till open when the detent is tripped. An alarm bell 5 has a spring hammer 6 which strikes it when the forward movement of the till draws a link 7 ahead until a tooth 8 thereon slips off the edge of the drawer, allowing the hammer to snap back.

A dial plate 9 with a back plate 10 suitably secured thereto in parallel spaced relation, both preferably of sheet metal, is detachably secured, preferably in an oblique plane, on the casing by suitable means, such as lugs 11 at the lower edge entering grooves or notches in the casing, and a lock 12 whose bolt engages a slotted lug 13 at the upper edge of the plate. The dial plate has a large central circular aperture which is surrounded with an annulus 14 of figures running from 0 to 99, inclusive. In order that these may be large enough to be readily seen, they are disposed the back plate.

in a double circle in staggered or alternate relation at regular equal intervals. A radial lug 15 is formed on the aperture margin opposite the numeral 0.

A ratchet disk 16 between the dial and back plate is journaled concentric with the dial aperture on a stud 17 in the back plate. Ratchet teeth 18 on the periphery of the disk correspond in number to the figures of the annulus 14 and a ring 19 of an equal number of apertures are concentrically disposed near the disk margin within the dial aperture. A second annulus 20 of figures corresponding in number to the figures of the annulus 14 is placed on the back of the disk 16, each numeral being in such relation to an aperture of the ring 19 and a view hole 21 in the back plate that when the aperture is brought into substantial registration with the zero of the annulus 14, the numeral registers with and {nay be seen through the back plate view iole.

A lever 22 of spring metal is pivoted at its inner-end on the stud 17 so that a pin 23 011 its under side normally clears the disk but may be interlocked with any one of the apertures of the ring 19, a spring latch 24 in a slot on the pin preventing its removal therefrom until the dial and lever have been swung to the zero point against the lug 15, when a cam plate 25 which projects into the circular path described by the latch, presses the latch 24 in and releases the lever. hen the pin is entered in an aperture, one of'a pair of view apertures 26 in the lever register with the numeral on the dial plate which is at that time in radial alinement with the disk aperture. A suitable detent 27 prevents retrograde movement of the disk.

One revolution of the disk, which is the unit or cent wheel of a computing train, moves a ten or dollar wheel 28 through a stop 27, lever 30 and ratchet 31 thereon engaging teeth 32 on the wheel 28. A series 33 of numerals corresponding in number to the teeth are circumferentially disposed on the back of the wheel 28 so that they are brought successively into register with a view aperture 34 in Or the wheel may be rotooth independently of the cent wheel by a key 35 sliding in a slot 36 of the dial plate and operating a lever 37 and pawl 38 thereon. The wheels may be set at zero through finger slots 39 in the back plate.

In order to release the till when the lever is tated tooth by at the zero point of the dial, a spring plunger on the lever'may be depressed and thereby project a stud 41 reciprocable in a bushing 42 on the back plate, against the drawer detent 3 and thereby trip it, allowing the till to be pushed out by the spring 4.

The operation is obvious. The wheels are first set at zero. Thereafter, when a purchase of less than a dollar is made, the amount is registered by swinging the lever to the corresponding numeral on the dial plate, interlocking it with the disk and turning it round to zero. If the purchase amounts to more than a dollar the dollars are registered by corresponding strokes of the dollar wheel lever, and the cents are recorded as before. The cumulative purchases of the day are read off from the view holes in the rear plate.

To obtain the amount of several purchases the following device may be used. A sleeve 42 is journaled in the central stud, and a pinion 43 is keyed on the inner end behind the unit or cent disk 16 which rotates freely on the sleeve. A computing dial 44 is keyed on or secured to the outer end of the sleeve so as to turn independently of the disk 16 but with its margin 45 in frictional engagement therewith. A double circle 46 of figures in staggered relation, and equal in number to the numerals of the disk 16 may be seen through either one of a pair of View apertures 47 in the operating lever. The latter, when its pin is interlocked with the disk, grips the raised rim 48 of the computing dial, and swings it with the disk. A spring pawl 49 holds the pinion 43 and consequently the dial against accidental displacement. Obviously, successive part turns of the disk bring the numeral representing their sum into registration with the zero of the face plate, and a second wheel, in all respects similar to the dollar wheel may be added for the addition of sums amounting to more than one dollar.

To reset the adding or computing dial at zero, a segmental gear 50 is pivoted on a pin or stud 51 sliding in a slot 52 in the back plate, and is so disposed as to be out of mesh with the pinion 43 when the stud 51 is held at the top of the slot 52. A suitable finger piece 53 sliding in a guide slot 54 in the face plate, is articulated by a link 55 to the seg ment so that it draws the pivot stud 51 of the latter down to the lower end of its slot when it is depressed, and then rotates it in mesh with the pinion until a stop 56 encounters the zero radial lug 15 of the dial plate.

The great advantage of the device is its simplicity and the fact that all the mechanism of the register is bodily removable with the face plate so that it is readily inspected, while it cannot be tampered with when in place.

Obviously changes in the details of construction may be made without departing from the spirit of the invention and I do not limit myself to any particular form or arrangements of parts.

What I claim as my invention is 1. A cash register comprising a casing, a spring projected till movable therein, a detent locking the till when closed, a dial plate detachably secured in the casing having a large circular aperture, an annulus of regularly disposed numerals concentric with the aperture, a plate backing the dial plate provided with a view hole, a ratchet disk journaled between the plates concentric with the dial aperture and provided with ratchet teeth and with a ring of apertures corresponding in number to the numerals of the dial annulus, a stop on the dial plate at the zero numeral, a ring of numerals on the back of the ratchet disk underrunning the back plate view hole, a lever journaled at one end on the disk pivot having a view hole adapted to registerwith a dial numeral, a latch thereon adapted to in terlock with any one of the disk apertures, and to engage the zero stop of the dial plate, and means on the lever adapted to trip the drawer detent when the lever latch is engaged by said stop.

2. A cash register comprising a casing, a spring projected till movable therein, a detent locking the till when closed, a dial plate detachably secured in the casing having a large circular aperture, an annulus of regularly disposed numerals concentric with the aperture, a plate backing the dial plate provided with a view hole, a ratchet disk journaled between the plates concentric with the dial aperture and provided with ratchet teeth and with a ring of apertures corresponding in' number to the numerals of the dial annulus, a stop on the dial plate at the zero numeral, a ring of numerals on the back of the ratchet disk underrunning the back plate view hole, a lever journaled at one end on the disk pivot having a view hole adapted to register with a dial numeral, a latch thereon adapted to interlock with any one of the disk apertures, and to engage the zero stop of the dial plate, and means on the lever adapted to trip the drawer detent when the lever latch is engaged by said stop, and a cam block on the back plate adapted to release the lever latch as it engages the zero stop.

3. A cash register comprising a casing, a spring projected till movable therein, a detent locking the till when closed, a dial plate detachably secured in the casing having a large circular aperture, an annulus of regularly disposed numerals concentric with the aperture, a plate backing the dial plate provided with a view hole, a ratchet disk journaled between the plate concentric with the dial aperture and provided with ratchet teeth and with a ring of apertures corresponding in number to the numerals of the dial annulus, a stop on the dial plate at the zero numeral, a ring of numerals on the back of the ratchet disk underrunning the back plate view hole, a lever journaled at one end on the disk pivot having a view hole adapted to register with a dial numeral, a latch thereon adapted to interlock with any one of the disk apertures, and to engage the zero stop of the dial plate, a stud on the underside of the lever adapted to enter an aperture of the disk, a springprojected latch in the stud adapted to hook under the disk when the stud is thrust home, a cam block between the plates adapted to press the latch into the stud when the latter is approaching the Zero stop, and means on the lever adapted to trip the drawer when the lever is engaged by the zero stop.

4. A cash register comprising a casing, a spring projected till movable therein, a detent locking the till when closed, a dial plate detachably secured in the casing having a large circular aperture, an annulus of regularly disposed numerals concentric with the aperture, a plate backing the dial plate provided with a view hole, a ratchet disk journaled between the plates concentric with the dial aperture and provided with ratchet teeth and with a ring of apertures corresponding in number to the numerals of the dial annulus, a stop on the dial a ring of numerals disk undcrrunning on the back of the ratchet the back plate view hole, a lever journaled at one end on the disk pivot having a view hole adapted to register with a dial numeral, a latch thereon adapted to interlock with any one of the disk apertures and to engage the zero stop of the dial plate, and a spring plunger longitudinally reciprocable in the lever adapted to depress the drawer detent when the lever is at the zero stop.

5. A cash register comprising a casing, a spring projected till movable therein, a detent locking the till when closed, a dial plate detachably secured in the casing having a large circular aperture, an annulus of regularly disposed numerals concentric with the aperture, a plate backing the dial plate provided with a view hole, a ratchet disk journaled between the plate concentric with the dial aperture and provided with ratchet teeth and with a ring of apertures corresponding in number to the numerals of the dial annulus, a stop on the dial plate at the zero numeral, a ring of numerals on the back of the ratchet disk undcrrunning the back plate view hole, a lever j ournaled at one end on the disk pivot having a view hole adapted to register with a dial numeral, a latch thereon adapted to interlock with any one of the disk apertures, and to engage the Zero stop of the dial plate, a stud on the underside of the lever adapted to enter an aperture of the disk, a spring projected latch in the stud adapted to hook under the disk when the stud is thrust home, a cam block between the plates adapted to press the latch into the stud when the latter is approaching the zero plate at the Zero numeral,

stop, and a spring plunger longitudinally reciprocable in the lever adapted to depress the drawer detent when the lever is at the zero sto 3.

6 In a cash register, a dial plate having a large circular aperture, a back plate secured thereto having a view aperture, an annulus of regularly disposed numerals on the dial concentric with the aperture, a stop on the dial at the zero point of the annulus, a disk journaled between the plates concentric with the dial aperture and provided with ratchet teeth and a ring of apertures, both corresponding in number to the numerals of the dial aperture, a ring of numerals on the back of the disk equal in number to the face numerals, in register with the back plate view hole, a lever journaled at its inner end at the pivot center of the disk provided with a view hole adapted to traverse the dial plate numerals and with a stud adapted to enter any of the disk apertures, a latch in the stud adapted to hold the stud in the disk, and a cam plate between the dial and back plates adapted to release the dial latch when the lever is at the dial Zero, said dial plate and mechanism comprising a unit bodily removable from the register.

7. In a cash register, a dial plate having a large circular aperture, a back plate secured thereto having a view aperture, an annulus of regularly disposed numerals on the dial concentric with the aperture, a stop on the dial at the zero point of the annulus, a disk journaled between the plates concentric with the dial aperture and provided with ratchet teeth and a ring of apertures both corresponding in number to the numerals of the dial aperture, a pawl yieldingly engaging the ratchet teeth of the disk adapted to prevent retrograde movement thereof, a ring of numerals on the back of the disk equal in number to the face numerals in register with the back plate view hole, a lever journaled at its inner end at the pivot center of the disk provided with a view hole adapted to traverse the dial plate numerals and with a stud adapted to enter any of the disk apertures, a latch. in the stud adapted to hold the stud in the disk, and a cam plate between the dial and back plates adapted to release the dial latch when the lever is at the dial Zero, said dial plate and mechanism. comprising a unit bodily removable from the register.

8. In a cash register, a dial plate having a large circular aperture, a back plate secured thereto having a view aperture, an annulus of regularly disposed numerals on the dial concentric with the aperture, a stop on the dial at the zero point of the annulus, a disk journaled between the plates concentric with the dial aperture and provided with ratchet teeth and a ring of apertures both corresponding in number to the numerals of the dial aperture, a ring of numerals on the back of the disk equal in number to the face numerals in register with the back plate view hole, a lever journaled at its inner end at the pivot center of the disk provided with a view hole adapted to traverse the dial plate numerals and with a stud adapted to enter any of the disk apertures, adapted to hold the stud in the disk, and a cam plate between the dial and back plates adapted to release the dial latch when the lever is at the dial zero, a ratchet wheel journaled between the plates, an annulus of numerals on its back corresponding in num her to the wheel teeth, and underrunning a view slot in the back plate, a pawl adapted to move said wheel one tooth when oscillated, a stop on the disk adapted to oscillate the pawl once each revolution of the disk, a second pawl adapted to move the wheel one tooth when oscillated, a finger slide adapted to operate the second pawl independently of the disk stop pawl, a detent engaging the wheel adapted to prevent retrograde move ment of the wheel.

9. In a cash register, a dial plate having a large circular aperture, a back plate secured thereto having a view aperture, an annulus of regularly disposed numerals on the dial concentric with its aperture, a pivot stud on the back plate at the center of the dial aperture, a sleeve rotatable thereon, a disk rotatable on the sleeve between the plates concentric with the dial aperture and provided with ratchet teeth and a ring of apertures both corresponding in number to the numerals of the disk aperture, a ring of numerals equal in number to the face numerals on the back of the disk underrunning the back plate view hole, a computing dial keyed to the sleeve outside the disk, a circular row of numerals thereon corresponding to the disk numerals, a lever pivoted on the stud having view holes adapted to register with the dial row and disk annulus of numerals respectively, a stud on the lever adapted to interlock with the apertures of the disk, said lever being adapted to frictionally engage and rotate the computing dial when the stud engages the disk and means to return the computing dial to zero.

10. In a cash register, a dial plate having a large circular aperture, a back plate secured thereto having a view aperture, an annulus of regularly disposed numerals on the dial concentric with its aperture, a pivot stud on the back plate at the center of the dial aperture, a sleeve rotatable thereon, a disk rotatable on the sleeve between the plates concentric with the dial aperture and provided with ratchet teeth and a ring of apertures both corresponding in number to the numerals of the disk aperture, a ring of numerals equal in number to the face numerals on the back of the disk underrunning the back plate view hole, a computing dial keyed to a latch in the stud the sleeve outside the disk, a circular row of numerals thereon corresponding to the dial numerals, a lever pivoted on the stud having view holes adapted to register with the dial row and disk annulus of numerals respectively, a stud on the lever adapted to interlock with the apertures of the disk, said lever be ing adapted to frictionally engage and rotate the computing dial when the stud engages the disk, a pinion keyed to the sleeve under the disk, a segmental gear adapted to be moved in and out of gear with the pinion, a finger key adapted to move the gear into mesh with the pinion and rotate the gear, and a stop adapted to arrest the dial at zero.

11. In a cash register, a dial plate having a large circular aperture, a back plate secured thereto having a view aperture, an annulus of regularly disposed numerals on the dial concentric with its aperture, a pivot stud on theback plate at the center of the dial aperture, a sleeve rotatable thereon, a disk rotatable on the sleeve between the plates concentric with the dial aperture and provided with ratchetteeth and a ring of apertures both corresponding in number to the numerals of the disk aperture, a ring of nu merals equal in number to the face numerals on the back of the disk underrunning the back plate view hole, a computing dial keyed to the sleeve outside the disk, a circular row of numerals thereon corresponding to the dial numerals, a lever pivoted on the stud having view holes adapted to register with the dial row and disk annulus of numerals respectively, a stud on the lever adapted to interlock with the apertures of the disk, said lever being adapted to frictionally engage and rotate the computing dial when the stud engages the disk, a pinion keyed to the sleeve under the disk, a segmental gear having an elongated bearing slot engaging a pivot pin on the back plate, a spring adapted to hold the gear normally out of mesh with the pinionwith the pin at one end of the slot, a finger pull pivoted to the gear adapted to draw the gear into mesh with the pinion with the pin at the other end of the slot coincident with the center of rotation of the gear and to rotate the gear, and a stop adapted to arrest the dial when the zero of its numeral circle is at the dial plate zero point.

12. In a cash register, a dial plate having a large circular aperture, a back plate secured thereto having a view aperture, an annulus of regularly disposed numerals on the dial concentric with its aperture, a pivot stud on the back plate at the center of the dial aperture, a sleeve rotatable thereon, a disk rotatable on the sleeve between the plates concentric with the dial aperture and provided with ratchet teeth and a ring of apertures both corresponding in numb er to the numerals of the disk aperture, a ring of numerals equal in number to the face numerals on the back sezsse of the disk underrunning the back plate view hole, a computing dial keyed to the sleeve outside the disk, a circular row thereon corres onding to the dial numerals, l a lever pivotec on the stud having view holes adapted to register with the dial row and disk annulus of numerals respectively, a stud on the lever adapted to interlock with tures of the of numerals the aperdisk, said lever being adapted to l ion keyed to the sleeve under the disk, a segmental gear adapted to be moved in and out of gear with the pinion, a key adapted to I move the gear into mesh with the pinion and rotate the gear and a stop adapted to arrest I the dial at zero, a ratchet wheel journaled between the plates, an annulus of numerals i on its back corresponding in number to the wheel teeth and underrunning a view slot on i the back plate, a pawl adapted to move said j wheel one tooth when oscillated, a stop on the disk adapted to oscillate the pawl once .each revolution of the disk, a second pawl adapted to move the wheel one tooth when oscillated, a linger slide adapted to operate the second pawl independently of the disk stop pawl, a J detent engaging the wheel adapted to prevent retrograde movement of the wheel.

13. A cash register comprising a casing, a spring projected till therein, a detent locking the till when closed, a dial plate detachably secured in the casing having a large circular I aperture, a back plate secured thereto having a rear aperture, an annulus of regularly disl I l posed numerals on the dial concentric with its aperture, a pivot stud on the back plate at the center of the dial aperture, a sleeve rotatable thereon, a disk rotatable on the sleeve between the plates concentric with the dial aperture and provided with ratchet teeth and a ring of apertures both corresponding in number to the numerals of the disk aperture, a ring of numerals equal in number to e face numerals on the back of the disk underrunning the back plate view hole, a computing dial keyed to the sleeve outside the disk, a circular row of numerals thereon corresponding to the disk numerals, a lever l pivoted on the stud havin view holes adapted to register with the dia row and disk an l l a view nulus of numerals respectively, a stud on the lever adapted to interlock with the a )ertures of the disk, said lever being adapter to frictionally engage and rotate the computing I dial when the stud engages the disk, means to return the computing dial to zero, and a spring plunger longitudinally reciprocable in the lever adapted to depress the drawer detent when the lever is at the zero stop.

14. A cash register comprising a casing, a spring projected till therein, a detent locking the till when closed, a dial plate detachably secured in the casing having a large circular aperture, a back plate secured thereto having aperture, an annulus of regularly disposed numerals on the dial concentric with its aperture, a pivot stud on the back plate at the center of the dial aperture, a sleeve rotatable thereon, a disk rotatable on the sleeve between the plates concentric with the dial aperture and provided with ratchet teeth and a ring of apertures both corresponding in number to the numerals of the disk aperture, a ring of numerals equal in number to the face numerals on the back of the disk undcrrunning the back plate view hole, a computing dial keyed to the sleeve outside the disk, a circular row of numerals thereon corresponding to the dial numerals, a lever pivoted on the stud having view holes adapted to register with the dial row and disk annulus of numerals respectively, a stud on the lever adapted to interlock with the apertures of the disk, said lever being adapted to frictionally engage and rotate the computing dial when the stud engages the disk, means to return the computing dial to zero, and a spring plunger longitudinally reciprocable in the lever adapted to depress the drawer de- ALBERT N. ERICSSON.

WVitnesses:

O. R. STIoKNEY, A. M. DoRR. 

